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Finding the Fourth Proportional to 91,099.44, 136,675.62 and 37,781.64

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Solution

The fourth proportional to 91,099.44, 136,675.62 and 37,781.64 is: 56,683.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,099.44 : 136,675.62 = 37,781.64 : x
  2. Step 2: Convert to fraction form
    91,099.44/136,675.62 = 37,781.64/x
  3. Step 3: Cross multiply
    91,099.44x = 136,675.62 × 37,781.64
  4. Step 4: Simplify right side
    91,099.44x = 5,163,829,071.62
  5. Step 5: Solve for x
    x = 5,163,829,071.62/91,099.44
  6. Step 6: Final answer
    x = 56,683.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.